Patents by Inventor Angelo Frank Leo

Angelo Frank Leo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4075153
    Abstract: An improved corrosion-resistant two component epoxy-amine primer system is disclosed wherein the first component of the primer system includes a liquid solution of a resinous polyepoxide, such as a diglycidyl ether of bisphenol A, and the second component comprises a liquid solution of an epoxy curing agent carrying a plurality of amino hydrogen atoms. In accordance with the invention, at least one of the components, preferably the first, contains a finely divided siliceous material having OH groups, such as talc, clay, or hydrous silica prereacted with an alkoxy group of a polyalkoxy silane or siloxane carrying at least one active hydrogen atom from an amine or mercaptan group which is reactive with the epoxy group of the polyepoxide. In addition, at least one of the components contains one or more inorganic corrosion-resistant chromate pigments.
    Type: Grant
    Filed: October 1, 1976
    Date of Patent: February 21, 1978
    Assignee: DeSoto, Inc.
    Inventor: Angelo Frank Leo